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UpNote vs Markor: catalog facts
UpNote	Markor
Freemium Free to download, with paid plans listed on the pricing page.	Free Free and open source.
Windows, macOS, Linux, Android, iOS, Browser extension	Android
Native apps for all major desktop and mobile systems Rich editor with Markdown, code blocks and attachments	Edits Markdown, todo.txt and Zim files directly Simple and lightweight
Closed source Full feature set depends on a paid plan	Android only No built-in sync service
Downloadable app, Browser extension	Downloadable app
Closed source	Open source
License not stated	License not stated
Not stated if an account is needed	No account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.